IRC Sections

Section Form Title
Ethics, Circular 230
6651 Failure to file tax return or to pay tax
6662 20% Accuracy-related penalty on underpayments:
  1. Negligence Penalty
  2. > $5,000 Substantial Understatement Penalty
  3. > $5,000 Substantial Valuation Misstatement
6663 Fraud penalty
6664 Definition of Underpayment
6694 Understatement of taxpayer's liability by tax return preparer
6695 Other penalties
6701 Penalties for aiding and abetting understatement of tax liability
7206 Fraud and false statements
7207 Fraudulent returns, statements, or other documents
7216 Disclosure or use of information by preparers of returns
AICPA: SSTS (Statements on Standards for Tax Services)
Business Forms
1040 SC Individual + LLC disregarded entity
701-777 1065 Partnerships
1120 C-Corporations
1361-1379 1120-S S-Corporations
641-692 1041 Trusts, Estates
501-530 990 Nonprofits
501 Exemption from tax, mostly §501(c)(3)
Individual Tax Return
6012 Persons required to make returns of income
6072 Time for filing income tax returns
152 Dependent defined
6651 Failure to file tax return or to pay tax
6654 Failure by individual to pay estimated income tax
6511 Limitations on credit or refund
6501 Limitations on assessment and collection
Income
62 Adjusted gross income defined
63 Taxable income defined
Disposition of Property
1001 Determination of amount of and recognition of gain or loss
1011-1016 Adjusted Basis
1221 Capital asset defined
1231 Property used in the trade or business and involuntary conversions
1245 Gain from dispositions of certain depreciable property
1250 Gain from dispositions of certain depreciable realty
Deductions
162 Trade or business expenses
212 Expenses for production of income
199A Qualified business income
24 Child tax credit
Tax
18960 Imposition of tax
14118960 Imposition of tax, Net Investment Income Tax
871 Tax on nonresident alien individuals
Section Form Title

 


Wolfgang Barwig, EA